Portable battery operated air pump



FIG. 1 is a front elevational view of the portable battery operated air pump of the present invention, showing our new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a rear elevational view thereof; and,

FIG. 4 is a top elevational view thereof.

A left side elevational view of the air pump is a mirror image of the right side elevational view of FIG. 2. 

The ornamental design for a portable battery operated air pump, as shown and described. 